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The Keithley 2000 Series Scanners are plug-in scanner cards designed to install in the back-panel option slot of Keithley Model 2000, 2001, 2002, and 2010 digital multimeters. Three card variants are available: the 2000-SCAN general-purpose 10-channel card, the 2001-SCAN high-speed multiplexing card with solid-state channels, and the 2001-TCSCAN thermocouple/general-purpose card with built-in cold-junction reference.
These scanner cards transform a host multimeter into a multipoint test and measurement system suited to applications involving up to ten measurement points. Combining scan and measurement capabilities in a single instrument reduces the need for extra equipment, eliminates complexities of triggering, timing, and processing issues, and helps reduce test time. The 2001-TCSCAN supports cold-junction compensated temperature measurements alongside voltage, resistance, and frequency measurements on the same card.
ValueTronics International has supplied new and pre-owned test and measurement equipment from our Elgin, Illinois facility since 1992. Every {{CONDITION}} 2000 Series Scanner card we sell is inspected by our technical staff at our 20,000 square foot warehouse at 1675 Cambridge Drive before it leaves the building. Customers reach a live test equipment specialist by phone and receive the same instrument they were quoted — with the condition, accessories, and documentation confirmed in writing.
Keithley Instruments was founded in Cleveland, Ohio in 1946 and built its reputation on precision low-level electrical measurement instruments. Keithley was acquired by Danaher Corporation in 2010, joining Tektronix in the same portfolio. In 2016, Danaher's industrial businesses — including both Keithley and Tektronix — were spun off into Fortive Corporation, where the Keithley brand continues today.
The Keithley 2000 Series Scanners comprise three plug-in scanner cards — the 2000-SCAN, 2001-SCAN, and 2001-TCSCAN — that all install in the back-panel option slot of the Keithley Model 2000, 2001, 2002, and 2010 digital multimeters. The datasheet groups these three cards as a family because they share the same host-instrument compatibility, the same compact mechanical form factor, and the same screw terminal input architecture.
Within the family, each card targets a different measurement focus. The 2000-SCAN is the general-purpose 10-channel relay scanner. The 2001-SCAN adds two solid-state channels to enable high-speed ratio and delta measurements. The 2001-TCSCAN trades one channel for a built-in cold-junction reference to enable thermocouple temperature measurements alongside voltage, resistance, and frequency.
Each new 2000 Series Scanner card listed below is its own dedicated product page with condition-matched pricing. Click into the specific card variant that fits your application and host multimeter to see the current quote, accessories included, and availability.
The 2000-SCAN is the entry point in the family: 10 channels of 2-pole relay input, configurable as 5-channel 4-pole, suited to general-purpose multiplexing into the host multimeter without the solid-state speed enhancements or thermocouple reference of the other two cards.
The three cards differ in channel architecture and measurement capability. The 2000-SCAN provides ten 2-pole relay channels with no solid-state or thermocouple capability. The 2001-SCAN provides eight relay channels plus two solid-state channels, with the solid-state channels supporting DCV, ACV, and frequency measurements at faster actuation times (150 µs on / 100 µs off versus 2.5 ms for the relay channels). The 2001-TCSCAN provides nine analog channels plus a dedicated cold-junction reference channel for thermocouple work, with scan speeds up to 43 channels per second at 1°C resolution.
Function coverage also differs across the family. The 2001-SCAN relay channels handle DCV, ACV, 4-wire and 2-wire resistance, RTDs, frequency, and (on two channels with user-supplied shunt resistors) DCI and ACI. The 2001-SCAN solid-state channels are limited to DCV, ACV, and frequency. The 2001-TCSCAN supports DCV, ACV, 4-wire resistance, thermocouple, 2-wire resistance, 4-wire RTD, 2-wire RTD, and frequency — mixable channel to channel.
| Model | Channels | Switching Type | Signal Range |
|---|---|---|---|
| 2001-TCSCAN | 9 analog input + 1 cold-junction reference | Relay (2-pole) | 500nV to 125V |
| 2000-SCAN | 10 (2-pole), configurable as 5 (4-pole) | Relay (electromechanical) | Up to 110V DC / 125V AC rms, 1A |
| 2001-SCAN | 10 (8 relay + 2 solid-state) | Relay + Solid-State Hybrid | 500nV to 125V; 110V DC, 1A (relay); 50mA (solid-state) |
Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.
| Parameter | Specification |
|---|---|
| Thermocouple Accuracy (Total Absolute Error, 1 Year, with Model 2001 Multimeter) | |
| Type J | Range: −100° to 760°C; Default Resolution: 0.1°C; 18°–28°C: ±0.65°C; 0°–18°C & 28°–50°C: ±1.08°C |
| Type K | Range: −100° to 1372°C; Default Resolution: 0.1°C; 18°–28°C: ±0.70°C; 0°–18°C & 28°–50°C: ±1.32°C |
| Type T | Range: −100° to 400°C; Default Resolution: 0.1°C; 18°–28°C: ±0.68°C; 0°–18°C & 28°–50°C: ±1.22°C |
| Type E | Range: −100° to 1000°C; Default Resolution: 0.1°C; 18°–28°C: ±0.67°C; 0°–18°C & 28°–50°C: ±1.11°C |
| Type R | Range: 0° to 1768°C; Default Resolution: 1.0°C; 18°–28°C: ±1.31°C; 0°–18°C & 28°–50°C: ±3.06°C |
| Type S | Range: 0° to 1768°C; Default Resolution: 1.0°C; 18°–28°C: ±1.30°C; 0°–18°C & 28°–50°C: ±3.02°C |
| Type B | Range: 350° to 1820°C; Default Resolution: 1.0°C; 18°–28°C: ±1.65°C; 0°–18°C & 28°–50°C: ±4.14°C |
| Accuracy Notes | Specifications apply to channels 2–6. Add 0.06°C for each adjacent channel away from channel 6. Extended range (Types J, K, T, E): −200.0°C to −100.1°C add ±0.1°C. Excluding thermocouple error. |
| General | |
| Channels | 9 channels of 2-pole analog input, 1 cold junction sensor |
| Functions | DCV, ACV, 4-wire Ω, Thermocouple, 2-wire Ω, 4-wire RTD, 2-wire RTD, Frequency (can be mixed from channel to channel) |
| Thermocouple Scan Speed | 25 channels/second @ 0.1°C resolution; 43 channels/second @ 1°C resolution |
| Capabilities | Multiplex one of nine 2-pole or one of four 4-pole analog signals into Model 2001 DMM and/or any combination of 2- or 4-pole analog signals |
| Reference Output | +200µV/°C (+54.63mV at 0°C) |
| All Inputs — Maximum Signal Levels | |
| DC | 110V DC, <1A switched, 30VA maximum (resistive load) |
| AC | 125V AC rms or 175V AC peak, 1A switched, 62.5VA maximum (resistive load) |
| Contact Life | >105 operations at maximum signal level; >108 operations cold switching |
| Contact Resistance | <1Ω at end of contact life (Channels 5 and 10 maximum power = 0.25 VA maximum — factory installed 120Ω, 5%, 1/4W resistors; user may replace with jumper) |
| Actuation Time | 2.5ms maximum on/off |
| Contact Potential | <±500nV typical per contact, 1µV max (Channels 5 and 10: ±1µV typical, 2µV max) |
| Connector Type | Screw terminal, #22 AWG wire size (0.062 O.D.) |
| Isolation Between Any Two Terminals | >109Ω, <75pF |
| Common Mode Voltage | 350V peak between any terminal and earth |
| Maximum Voltage Between Any Two Terminals | 110V DC, 125V AC rms |
| Physical | |
| Dimensions | 21mm high × 72mm wide × 221mm deep (0.83 in × 2.83 in × 8.7 in) |
| Net Weight | 283g (10 oz) |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Keithley
Condition
New
Manufacturer
Keithley
30+ Years in Business
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30+ Years in Business
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Sell Test Equipments
Knowledgeable Staff
On-site Lab
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